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发明名称
Electrical switch
摘要
申请公布号
US2347834(A)
申请公布日期
1944.05.02
申请号
US19420465218
申请日期
1942.11.11
申请人
THE UNION SWITCH AND SIGNAL COMPANY
发明人
LIVINGSTON JOHN W.
分类号
H01H50/42
主分类号
H01H50/42
代理机构
代理人
主权项
地址
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